Biophysicists have known for a long time that polar-bear fur and other biological materials with an ordered microstructure can guide light, but this has always been assumed to be because of ...

Dentin or dentine is a layer of material that lies immediately underneath the enamel of the tooth. It is one of the four major components of the tooth which comprises: The outer hard enamel The dentin ...

AT A CLINIC at the University of California, San Francisco, dentists in training hone their "drill-and-fill" skills for treating patients with cavities. But in a lab across the hall from the clinic, a ...

Researchers in Germany believe that the ability of some biomaterials to guide light is due to light scattering, and not fiber-optic effects as previously thought. Biophysicists have known for a long ...